<template>
  <div>
    <div class="search">
      <input v-model="keyword" type="text" class="search-input" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li v-for="item of list" :key="item.id" class="search-item border-bottom" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom" v-show="listShow">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>
<script>
  import Bscroll from 'better-scroll'
  import {mapMutations} from 'vuex'

  export default {
    props: {
      cities: {
        type: Object,
        default() {
          return {}
        }
      }
    },
    data() {
      return {
        keyword: '',
        list: [],
        timer: null
      }
    },
    watch: {
      keyword() {
        if(this.timer) {
          clearTimeout(this.timer)
        }
        if(!this.keyword) {
          this.list = []
          return
        }
        this.timer = setTimeout(() => {
          const result = []
          for(let i in this.cities) {
          this.cities[i].forEach((value) => {
              if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        }, 100)
      }
    },
    mounted() {
      this.scroll = new Bscroll(this.$refs.search)
    },
    computed: {
      listShow() {
        return !this.list.length
      }
    },
    methods: {
      handleCityClick(city) {
        /*this.$store.dispatch('changeCity', city)*/
        /*this.$store.commit('changeCity', city)*/
        this.changeCity(city)
        this.$router.push('/')
      },
      ...mapMutations(['changeCity'])
    }
  }
</script>

<style scoped lang="stylus">
  @import '~styles/varibles.styl'
  .search
    height: .72rem
    padding: 0 .1rem
    background: $bgColor
    .search-input
      box-sizing: border-box
      width: 100%
      height: .62rem
      line-height: .62rem
      padding: 0 .1rem
      text-align: center
      color: #666
      border-radius: .06rem
  .search-content
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    z-index: 1
    background: #eee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      background: #fff
      color: #666
</style>
